[meteorite-list] Meteorite-list Digest, Vol 38, Issue 52

From: Tim Stout <timw.stout_at_meteoritecentral.com>
Date: Thu, 11 Jan 2007 20:38:26 -0800
Message-ID: <000c01c73603$80df7b40$a39d6f47_at_TimO0KWKW9JWC>

----- Original Message -----
From: <meteorite-list-request at meteoritecentral.com>
To: <meteorite-list at meteoritecentral.com>
Sent: Thursday, January 11, 2007 6:34 PM
Subject: Meteorite-list Digest, Vol 38, Issue 52


> Send Meteorite-list mailing list submissions to
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>
> Today's Topics:
>
> 1. Re: Re-2: January Comet? (Thomas.Tuchan at t-online.de)
> 2. New NASA Orbiter Sees Details of 1997 Pathfinder Site (Ron Baalke)
> 3. Those Aussies!! (Martin Altmann)
> 4. Spectarular Comet!! (Gerald Flaherty)
> 5. Re: Those Aussies!! (Bob WALKER)
> 6. AD cutting Gibeon, Henbury and a couple others. Sale (Mike Miller)
> 7. Dust Around Nearby Star Like Powder Snow (Ron Baalke)
> 8. Old Sikhote-Alin documentary film (Alexander Seidel)
> 9. Geologists Discover That Black Diamonds Are From Outer Space
> (Ron Baalke)
> 10. Re: Old Sikhote-Alin documentary film (ensoramanda)
> 11. Re: Lightning Balls Created In The Lab (Rob McCafferty)
> 12. Re: January Comet? (Gerald Flaherty)
> 13. Re: January Comet? (Gerald Flaherty)
> 14. Re: Re-2: January Comet? (Gerald Flaherty)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 11 Jan 2007 23:56:20 +0100
> From: "Thomas.Tuchan at t-online.de" <Thomas.Tuchan at t-online.de>
> Subject: Re: [meteorite-list] Re-2: January Comet?
> To: Meteorite-list at meteoritecentral.com
> Message-ID: <1H58qK-0bTbGa0 at fwd32.aul.t-online.de>
> Content-Type: text/plain; charset="us-ascii"
>
> An HTML attachment was scrubbed...
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>
> ------------------------------
>
> Message: 2
> Date: Thu, 11 Jan 2007 15:10:58 -0800 (PST)
> From: Ron Baalke <baalke at zagami.jpl.nasa.gov>
> Subject: [meteorite-list] New NASA Orbiter Sees Details of 1997
> Pathfinder Site
> To: meteorite-list at meteoritecentral.com (Meteorite Mailing List)
> Message-ID: <200701112310.PAA05218 at zagami.jpl.nasa.gov>
> Content-Type: text/plain; charset=us-ascii
>
>
> http://www.jpl.nasa.gov/news/news.cfm?release=2007-005
>
> New NASA Orbiter Sees Details of 1997 Pathfinder Site
> January 11, 2007
>
> The high-resolution camera on NASA's Mars Reconnaissance Orbiter has
> imaged the 1997 landing site of NASA's Mars Pathfinder, revealing new
> details of hardware on the surface and the geology of the region.
>
> The new image from the orbiter's High Resolution Imaging Science
> Experiment is available on the Internet at
>
> http://www.nasa.gov/mission_pages/MRO/multimedia/pia09105.html
>
> and at links from
>
> http://hirise.lpl.arizona.edu .
>
> The Pathfinder mission's small rover, Sojourner, appears to have moved
> closer to the stationary lander after the final data transmission from
> the lander, based on tentative identification of the rover in the image.
> Pathfinder landed on July 4, 1997, and transmitted data for 12 weeks.
> Unlike the two larger rovers, Spirit and Opportunity, currently active
> on Mars, Sojourner could communicate only with the lander, not directly
> with Earth.
>
> The lander's ramps, science deck and portions of the airbags can be
> discerned in the new image. The parachute and backshell used in the
> spacecraft's descent lie to the south, behind a hill from the viewpoint
> of the lander. Four bright features may be portions of the heat shield.
>
> Rob Manning, Mars program chief engineer at NASA's Jet Propulsion
> Laboratory, Pasadena, said, "The new image provides information about
> Pathfinder's landing and should help confirm our reconstruction of the
> descent as well as give us insights into the landing and the airbag
> bounces."
>
> Dr. Alfred McEwen of the University of Arizona, Tucson, principal
> investigator for the High Resolution Imaging Science Experiment, said
> "Pathfinder's landing site is one of the most-studied places on Mars.
> Making connections between this new orbital image and the geological
> information collected at ground level aids our interpretation of orbital
> images of other places."
>
> For more information on Mars Reconnaissance Orbiter, visit:
>
> http://www.nasa.gov/mro .
>
> Mars Reconnaissance Orbiter is managed by JPL for NASA's Science Mission
> Directorate, Washington. JPL is a division of the California Institute
> of Technology in Pasadena. Lockheed Martin Space Systems, Denver, is the
> prime contractor for the project and built the spacecraft. The High
> Resolution Imaging Science Experiment is operated by the University of
> Arizona, and the instrument was built by Ball Aerospace and Technology
> Corp., Boulder, Colo.
>
> ------------------------------------------------------------------------
>
> Media contacts: Guy Webster 818-354-6278
> Jet Propulsion Laboratory, Pasadena, Calif.
>
> Dwayne Brown 202-358-1726
> NASA Headquarters, Washington
>
> Lori Stiles 520-626-4402
> University of Arizona, Tucson
>
> 2007-005
>
>
>
> ------------------------------
>
> Message: 3
> Date: Fri, 12 Jan 2007 00:45:25 +0100
> From: "Martin Altmann" <altmann at meteorite-martin.de>
> Subject: [meteorite-list] Those Aussies!!
> To: <meteorite-list at meteoritecentral.com>
> Message-ID: <012101c735da$91c2e4c0$4f41fea9 at name86d88d87e2>
> Content-Type: text/plain; charset="us-ascii"
>
> What's going on there in Cranbourne?
> Almost no export permits for meteorites, only to hang them in front of a
> MacDonalds restaurant on a burb-road?
>
> http://www.travelvictoria.com.au/images/cranbourne/photos/43.jpg
>
> http://www.travelvictoria.com.au/images/cranbourne/photos/42.jpg
>
>
> Buckleboo?
> Martin
>
>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 10 Jan 2007 17:50:58 -0500
> From: "Gerald Flaherty" <grf2 at verizon.net>
> Subject: [meteorite-list] Spectarular Comet!!
> To: <Meteorite-list at meteoritecentral.com>
> Cc: "Sterling K. Webb" <kelly at 618connect.com>
> Message-ID: <007001c73509$cde170b0$6402a8c0 at Dell>
> Content-Type: text/plain; format=flowed; charset=iso-8859-1;
> reply-type=original
>
> Dear List
> Please do NOT miss an opportunity to see Comet McNaught.
> Adjectives pale in comparison.
> Follow Sterling's "guide". Any pair of Binoculars or spotting scope will
> help.
> It's close to the evening western horizon so think of a place or a height
> where you can see an relatively unobstructed view west.
> If you can see Venus look south [to the right]and lower in the sky.
> The Coma is very bright and the tail is gigantic!
> It's well worth the time and CHILL.
> Jerry Flaherty
>
>
>
> ------------------------------
>
> Message: 5
> Date: Fri, 12 Jan 2007 10:06:03 +1000
> From: "Bob WALKER" <qwalkra1 at rawnet.com.au>
> Subject: Re: [meteorite-list] Those Aussies!!
> To: "Martin Altmann" <altmann at meteorite-martin.de>,
> <meteorite-list at meteoritecentral.com>
> Message-ID: <027701c735dd$7471d450$6a01a8c0 at personalz240hy>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Martin - they are only phucken replikas
>
> If ya peek thru the site you'll find and I quote
>
> An unusual attraction within Cranbourne is a meteorite display. Situated
> within the park on the corner of the South Gippsland Highway and Camms
> Road
> (opposite The Settlement Hotel) are full-scale replicas of meteorites that
> landed in the area in 1860.
>
> Cranbourne still is available if ya know where to buy it from...
>
> The dealer who hates dinosaur egg jokes has plenty for sale...
>
> I've got a couple of small part-slices 1 x 20 g and 1 x 10 g merely becoz
> it
> pleases me to collect small pieces of the largest Australian irons
>
> My current focus is Queensland (Australia) meteorites... I am missing a
> few
> but by god have lotsa new Queensland finds to swapntrade
>
> The export regulations are not too stringent - in short if there is a
> significant holding in a public institution eg a museum or institution -
> then u are allowed to export - one usually contacts the geoscience curator
> at the relevant state museum to arrange permission - its more komplicated
> in
> WA where the State owns any found after a certain date...
>
> And buckleboo to you too
>
> No funny pictures today lol
>
> ----- Original Message -----
> From: "Martin Altmann" <altmann at meteorite-martin.de>
> To: <meteorite-list at meteoritecentral.com>
> Sent: Friday, January 12, 2007 9:45 AM
> Subject: [meteorite-list] Those Aussies!!
>
>
>> What's going on there in Cranbourne?
>> Almost no export permits for meteorites, only to hang them in front of a
>> MacDonalds restaurant on a burb-road?
>>
>> http://www.travelvictoria.com.au/images/cranbourne/photos/43.jpg
>>
>> http://www.travelvictoria.com.au/images/cranbourne/photos/42.jpg
>>
>>
>> Buckleboo?
>> Martin
>>
>>
>>
>> ______________________________________________
>> Meteorite-list mailing list
>> Meteorite-list at meteoritecentral.com
>> http://six.pairlist.net/mailman/listinfo/meteorite-list
>
>
>
> ------------------------------
>
> Message: 6
> Date: Thu, 11 Jan 2007 16:07:20 -0800
> From: "Mike Miller" <meteoritefinder at gmail.com>
> Subject: [meteorite-list] AD cutting Gibeon, Henbury and a couple
> others. Sale
> To: "meteorite-list at meteoritecentral.com"
> <meteorite-list at meteoritecentral.com>
> Message-ID:
> <468bf6050701111607x581b7858obd81288e9ee72d69 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Hello everyone hope your new year has started well. I am just getting
> started cutting a 70 pound Gibeon with very few fractures and a great
> etch. So anyone looking for a certain thickness or big slice, now is
> time to get your order in. Once I fill any orders it gets sliced into
> regular 3mm slices.
> I am also cutting some really great Henbury, it is about 30 pounds so
> if you want a nice full slice cut just for you. Now is the time to put
> in your order. Please contact me off list for more specific
> information. Thanks
>
> --
> Mike Miller Po Box 314 Gerber Ca 96035
> www.meteoritefinder.com
> 530-384-1598
>
>
> ------------------------------
>
> Message: 7
> Date: Thu, 11 Jan 2007 16:47:44 -0800 (PST)
> From: Ron Baalke <baalke at zagami.jpl.nasa.gov>
> Subject: [meteorite-list] Dust Around Nearby Star Like Powder Snow
> To: meteorite-list at meteoritecentral.com (Meteorite Mailing List)
> Message-ID: <200701120047.QAA10269 at zagami.jpl.nasa.gov>
> Content-Type: text/plain; charset=us-ascii
>
>
>
> Media Relations
> University of California-Berkeley
>
> Media Contacts:
> Robert Sanders
> (510) 643-6998, (510) 642-3734
>
> FOR IMMEDIATE RELEASE: Monday, January 08, 2007
>
> Dust around nearby star like powder snow
> By Robert Sanders, Media Relations
>
> BERKELEY -- Astronomers peering into the dust surrounding a nearby red
> dwarf
> star have found that the dust grains have a fluffiness comparable to that
> of
> powder snow, the ne plus ultra of skiers and snowboarders.
>
> This is the first definitive measurement of the porosity of dust outside
> our
> solar system, and is akin to looking back 4 billion years into the early
> days of our planetary system, say researchers at the University of
> California, Berkeley. That was the era after the formation of planets, but
> before the remaining snowball- or softball-sized rubble was ground into
> dust
> by collisions and blown out of the inner solar system.
>
> "We believe that this porosity is primordial, and reflects the
> agglomeration
> process whereby interstellar grains first assembled to form macroscopic
> objects," said James Graham, UC Berkeley professor of astronomy.
>
> The grains are probably microscopic dirty snowballs, a mixture of ice and
> rock.
>
> "The difference between a snowflake and a hailstone -- both are ice but
> with
> very different porosities -- occurs because they form very differently,"
> he
> added. "Hailstones grow in violent thunderstorms; snowflakes grow under
> much
> more sedate meteorological conditions. Similarly, we conclude that the
> dust
> grains in the AU Mic debris disk formed by gentle agglomeration."
>
> Graham and Paul Kalas, a UC Berkeley assistant adjunct professor of
> astronomy, discussed their findings on the AU Microscopii (AU Mic) system
> at
> a press conference yesterday (Sunday, Jan. 7) during the Seattle meeting
> of
> the American Astronomical Society.
>
> Graham, Kalas and former UC Berkeley post-doctoral fellow Brenda C.
> Matthews, now at the Herzberg Institute of Astrophysics in Victoria,
> British
> Columbia, Canada, also presented their findings yesterday during a poster
> session at the meeting. Their paper on the dust in the AU Mic disk was
> published in the Jan. 1, 2007, issue of The Astrophysical Journal.
>
> Objects in our solar system also are porous -- comet grains that have lost
> their ice are like birds' nests, while some asteroids have been shown to
> be
> half-empty rubble piles -- but none are as full of nothingness as the dust
> in AU Mic, which is more than 90 percent vacuum.
>
> "Most things we see have been compactified or compressed so that the
> vacuum
> has been squeezed out and filled in. Once you get to macroscopic objects a
> few inches across, those interstices are compressed and go away. So, 97
> percent is a very high value," Graham said.
>
> The astronomers were studying the closest known star with a dusty debris
> disk and possible planetary system, which were discovered around AU Mic by
> Kalas nearly three years ago. Red dwarfs like AU Mic, with a mass less
> than
> half that of the sun, are the most common stars in the Milky Way Galaxy.
> And
> at 33 light years distance, AU Mic is close enough for the Hubble Space
> Telescope to image with exquisite spatial resolution.
>
> Hubble observations have previously shown that the 12 million-year-old AU
> Mic system bears a strong resemblance to our much older solar system, with
> a
> ring of debris around it analogous to our Kuiper Belt of comets and
> Pluto-sized objects. This outer belt starts about 40 to 50 astronomical
> units (AU) from the central star, where an AU is 93 million miles, the
> average distance of the Earth from the sun. The inside of this region
> appears devoid of dust, hence the suspicion that the star has planets and
> other orbiting debris that have removed the dust.
>
> The UC Berkeley researchers, however, were curious about the dust grains
> far
> smaller than the rocks and planets.
>
> "The big question in planet formation is how dust grains grow from
> interstellar sizes -- about 100 nanometers -- to macroscopic objects,"
> Graham said. A 100 nanometer grain is one-tenth of a micron; a thousand
> such
> grains would span the diameter of a human hair. "We know that interstellar
> grains exist; we know that planets exist, but what we don't know is how
> they
> grow."
>
> On August 1, 2004, the Hubble telescope slipped Polaroid glasses over its
> Advanced Camera for Surveys and snapped pictures of the nearly edge-on AU
> Mic disk as the polarizing filters rotated, sampling different linear
> polarizations.
>
> "We use the polarizing filters to measure how the light reflects and
> scatters off the dust," Graham said. "The degree of polarization is useful
> for the same reason that polarizing sunglasses are useful to reduce the
> glare of reflected sunlight from the ocean."
>
> By comparing the brightness of the scattered light at different
> polarizations, the researchers were able to calculate the porosity of the
> dust, which turned out to be greater than 90 percent, analogous to powder
> snow common in California's Sierra Nevada. The most porous dust is similar
> to the driest powder snow on Earth, termed "champagne powder," which is 97
> percent air and only 3 percent ice.
>
> These dust grains, which are on the order of a micron across, the size of
> soot or smoke particles, are quickly blown out of the inner disk by the
> stellar wind, which means that the dust is continually being replenished
> by
> colliding bodies in the inner system.
>
> "These colliding bodies must be fairly fluffy, too," Graham said. "These
> are
> the 10- to 20-centimeter snowballs, which are weakly bound together. Two
> of
> them have a glancing collision and release a puff of ice that we get to
> see
> in reflected light from the star."
>
> The findings are consistent with a theory of planet formation whereby gas
> and dust coalesce into rocks and planets within the first 10 million or so
> years. While planet-size bodies continue to sweep up some of the remaining
> dust and debris, the debris also collides and creates small dust grains
> small enough for the stellar wind to blow it out of the inner system,
> leaving a hole dominated by larger objects, like the planets, dwarf
> planets
> and asteroids of our solar system. UC Berkeley theoretical astronomer
> Eugene
> Chiang coined the term "birth ring" to indicate the ring of objects around
> a
> star that divides a planetary system into an inner region devoid of small
> dust grains and an outer region into which these grains have been blown
> and
> still orbit the star in a belt like the Kuiper Belt.
>
> "This gives quite a lot of credence to Chiang's theory," Graham said. "The
> thought is that these debris disks are in the cleanup phase, where all the
> small particles are colliding and being reduced to small dust grains and
> being blown away. So what is left in a few 100 million years is
> meter-sized
> objects and above. And, of course, the planetary mass objects."
>
> The work was supported by the National Aeronautics and Space
> Administration.
>
>
>
> ------------------------------
>
> Message: 8
> Date: Fri, 12 Jan 2007 01:53:42 +0100
> From: "Alexander Seidel" <gsac at gmx.net>
> Subject: [meteorite-list] Old Sikhote-Alin documentary film
> To: meteorite-list at meteoritecentral.com
> Message-ID: <20070112005342.306540 at gmx.net>
> Content-Type: text/plain; charset="iso-8859-1"
>
> I don?t know whether this has already been posted here on the list, but in
> a German internet forum about minerals and meteorites I just found a link
> to Jeff Kuykens? Australian site, which hosts a nice old b/w documentary
> film about the Sikhote-Alin fall:
>
> http://www.meteorites.com.au/odds&ends/sikhote-alin.html
>
> [Rather big, 43.8 MB, and almost 18 minutes long. With English subtitles
> provided by expert translator (Russian native speaker) Sergey Vassiliev]
>
> You might enjoy this oldie! Shortly before the film ends, there is a small
> section showing a view of the Boguslavka IIAB Hex meteorite on display in
> the Russian Academy of Sciences. For several weeks now I have been the
> proud owner of a very nice 13.15-g-slice of that one showing excellent
> Neumann lines. Some slices of this meteorite may still be available from
> "Chladni?s Heirs" (Martin Altmann, Stefan Ralew, Andi Gren) at the Tucson
> show, well, if you hurry...
>
> Alex
> Berlin/Germany
>
>
> ------------------------------
>
> Message: 9
> Date: Thu, 11 Jan 2007 16:59:14 -0800 (PST)
> From: Ron Baalke <baalke at zagami.jpl.nasa.gov>
> Subject: [meteorite-list] Geologists Discover That Black Diamonds Are
> From Outer Space
> To: meteorite-list at meteoritecentral.com (Meteorite Mailing List)
> Message-ID: <200701120059.QAA11517 at zagami.jpl.nasa.gov>
> Content-Type: text/plain; charset=us-ascii
>
>
>
> National Science Foundation
> Arlington, Virginia
>
> Media Contacts:
> Cheryl Dybas, NSF
> (703) 292-7734
>
> January 8, 2007
>
> Press Release 07-001
>
> Diamonds from Outer Space: Geologists Discover Origin of Earth's
> Mysterious
> Black Diamonds
>
> If indeed "a diamond is forever," the most primitive origins of Earth's
> so-called black diamonds were in deep, universal time, geologists have
> discovered. Black diamonds came from none other than interstellar space.
>
> In a paper published online on December 20, 2006, in the journal
> Astrophysical Journal Letters, scientists Jozsef Garai and Stephen
> Haggerty
> of Florida International University, along with Case Western Reserve
> University researchers Sandeep Rekhi and Mark Chance, claim an
> extraterrestrial origin for the unique black diamonds, also called
> carbonado
> diamonds.
>
> Infrared synchrotron radiation at Brookhaven National Laboratory was used
> to
> discover the diamonds' source.
>
> "Trace elements critical to an 'ET' origin are nitrogen and hydrogen,"
> said
> Haggerty. The presence of hydrogen in the carbonado diamonds indicates an
> origin in a hydrogen-rich interstellar space, he and colleagues believe.
>
> The term carbonado was coined by the Portuguese in Brazil in the mid-18th
> century; it's derived from its visual similarity to porous charcoal. Black
> diamonds are found only in Brazil and the Central African Republic.
>
> "Conventional diamonds are mined from explosive volcanic rocks
> [kimberlites]
> that transport them from depths in excess of 100 kilometers to the Earth's
> surface in a very short amount of time," said Sonia Esperanca, program
> director in the National Science Foundation's Division of Earth Sciences,
> which funded the research. "This process preserves the unique crystal
> structure that makes diamonds the hardest natural material known."
>
>>From Australia to Siberia, from China to India, the geological settings of
> conventional diamonds are virtually identical, said Haggerty. None of them
> are compatible with the formation of black diamonds.
>
> Approximately 600 tons of conventional diamonds have been mined, traded,
> polished and adorned since 1900. "But not a single black/carbonado diamond
> has been discovered in the world's mining fields," Haggerty said.
>
> The new data support earlier research by Haggerty showing that carbonado
> diamonds formed in stellar supernovae explosions. Black diamonds were once
> the size of asteroids, a kilometer or more in diameter when they first
> landed on Earth.
>
> -NSF-
>
> The National Science Foundation (NSF) is an independent federal agency
> that
> supports fundamental research and education across all fields of science
> and
> engineering, with an annual budget of $5.58 billion. NSF funds reach all
> 50
> states through grants to nearly 1,700 universities and institutions. Each
> year, NSF receives about 40,000 competitive requests for funding, and
> makes
> nearly 10,000 new funding awards. The NSF also awards over $400 million in
> professional and service contracts yearly.
>
> IMAGE CAPTION:
> [http://www.nsf.gov/news/mmg/media/images/carbonado_h.jpg (1.75MB)]
> Black, or carbonado, diamonds, came from outer space, geologists have
> discovered. Credit: Steve Haggerty
>
>
>
> ------------------------------
>
> Message: 10
> Date: Fri, 12 Jan 2007 01:26:18 +0000
> From: ensoramanda <ensoramanda at ntlworld.com>
> Subject: Re: [meteorite-list] Old Sikhote-Alin documentary film
> To: Alexander Seidel <gsac at gmx.net>,
> Meteorite-list at meteoritecentral.com
> Message-ID: <45A6E3BA.5030808 at ntlworld.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>
> Thanks Alex,
>
> Great piece of historic film.
>
> Graham Ensor, Nr Barwell, uk
>
>
> Alexander Seidel wrote:
>
>>I don?t know whether this has already been posted here on the list, but in
>>a German internet forum about minerals and meteorites I just found a link
>>to Jeff Kuykens? Australian site, which hosts a nice old b/w documentary
>>film about the Sikhote-Alin fall:
>>
>>http://www.meteorites.com.au/odds&ends/sikhote-alin.html
>>
>>[Rather big, 43.8 MB, and almost 18 minutes long. With English subtitles
>>provided by expert translator (Russian native speaker) Sergey Vassiliev]
>>
>>You might enjoy this oldie! Shortly before the film ends, there is a small
>>section showing a view of the Boguslavka IIAB Hex meteorite on display in
>>the Russian Academy of Sciences. For several weeks now I have been the
>>proud owner of a very nice 13.15-g-slice of that one showing excellent
>>Neumann lines. Some slices of this meteorite may still be available from
>>"Chladni?s Heirs" (Martin Altmann, Stefan Ralew, Andi Gren) at the Tucson
>>show, well, if you hurry...
>>
>>Alex
>>Berlin/Germany
>>______________________________________________
>>Meteorite-list mailing list
>>Meteorite-list at meteoritecentral.com
>>http://six.pairlist.net/mailman/listinfo/meteorite-list
>>
>>
>>
>>
>
>
> ------------------------------
>
> Message: 11
> Date: Thu, 11 Jan 2007 18:05:17 -0800 (PST)
> From: Rob McCafferty <rob_mccafferty at yahoo.com>
> Subject: Re: [meteorite-list] Lightning Balls Created In The Lab
> To: altmann at meteorite-martin.de, meteorite-list at meteoritecentral.com
> Message-ID: <849034.50308.qm at web50913.mail.yahoo.com>
> Content-Type: text/plain; charset=iso-8859-1
>
> Is this really new stuff? I watched "Bolas Luminosas"
> and they looked almost identical to something I saw
> years ago on some BBC documentary about lightning.
> Some Scientist used a couple of hundred Decomissioned
> submarine batteries to generate sparks and got the
> same effect. I remember showing the video to kids I
> taught 7-8 years ago.
>
> Rob McC
>
>
> --- Martin Altmann <altmann at meteorite-martin.de>
> wrote:
>
>>
>> They look like the ideal pets for Dave Harris in the
>> video....
>>
>> -----Urspr?ngliche Nachricht-----
>> Von: meteorite-list-bounces at meteoritecentral.com
>> [mailto:meteorite-list-bounces at meteoritecentral.com]
>> Im Auftrag von Ron
>> Baalke
>> Gesendet: Donnerstag, 11. Januar 2007 18:50
>> An: Meteorite Mailing List
>> Betreff: [meteorite-list] Lightning Balls Created In
>> The Lab
>>
>>
>>
> http://www.newscientist.com/channel/fundamentals/mg19325863.500
>>
>> Lightning balls created in the lab
>> Hazel Muir
>> New Scientist
>> 10 January 2007
>>
>> Ball lightning could soon lose its status as a
>> mystery, now that a team
>> in Brazil has cooked up a simple recipe for making
>> similar eerie orbs of
>> light in the lab, even getting them to bounce around
>> for several
>> seconds. Watch a movie of the boucing balls here.
>> <http://www.espacociencia.pe.gov.br/multimidia.php>
>>
>> Thousands of people have reported seeing ball
>> lightning, a luminous
>> sphere that sometimes appears during thunderstorms.
>> It is typically the
>> size of a grapefruit and lasts for a few seconds or
>> minutes, sometimes
>> hovering, even bouncing along the ground.
>>
>> One eyewitness saw a glowing ball burn through the
>> screen door of a
>> house in Oregon, navigate down to the basement and
>> wreck an old mangle,
>> while in another report, a similar orb bounced on a
>> Russian teacher's
>> head more than 20 times before vanishing.
>>
>> One theory suggests that ball lightning is a highly
>> ionised blob of
>> plasma held together by its own magnetic fields,
>> while an exotic
>> explanation claims the cause is mini black holes
>> created in the big bang.
>>
>> A more down-to-earth theory, proposed by John
>> Abrahamson and James
>> Dinniss at the University of Canterbury in
>> Christchurch, New Zealand, is
>> that ball lightning forms when lightning strikes
>> soil, turning any
>> silica in the soil into pure silicon vapour. As the
>> vapour cools, the
>> silicon condenses into a floating aerosol bound into
>> a ball by charges
>> that gather on its surface, and it glows with the
>> heat of silicon
>> recombining with oxygen.
>>
>> To test this idea, a team led by Antonio Pavao and
>> Gerson Paiva from the
>> Federal University of Pernambuco in Brazil took
>> wafers of silicon just
>> 350 micrometres thick, placed them between two
>> electrodes and zapped
>> them with currents of up to 140 amps. Then over a
>> couple of seconds,
>> they moved the electrodes slightly apart, creating
>> an electrical arc
>> that vaporised the silicon.
>>
>> The arc spat out glowing fragments of silicon but
>> also, sometimes,
>> luminous orbs the size of ping-pong balls that
>> persisted for up to 8
>> seconds. "The luminous balls seem to be alive," says
>> Pavao. He says
>> their fuzzy surfaces emitted little jets that seemed
>> to jerk them
>> forward or sideways, as well as smoke trails that
>> formed spiral shapes,
>> suggesting the balls were spinning. From their
>> blue-white or
>> orange-white colour, Pavao's team estimates that
>> they have a temperature
>> of roughly 2000 kelvin. The balls were able to melt
>> plastic, and one
>> even burned a hole in Paiva's jeans.
>>
>> These are by far the longest-lived glowing balls
>> ever made in the lab.
>> Earlier experiments using microwaves created
>> luminous balls
>> but they disappeared milliseconds after the
>> microwaves were switched off.
>>
>> "The lifetimes of our fireballs are about a hundred
>> or more times higher
>> than that obtained by microwaves," says Pavao, whose
>> findings will
>> appear in Physical Review Letters. Abrahamson is
>> thrilled. "It made my
>> year when I heard about it," he says. "The balls,
>> although still small,
>> lasted long enough to come into the mainstream of
>> observed natural ball
>> lightning."
>>
>> Pavao's team is currently working out the chemical
>> reactions involved in
>> the balls' formation, and experimenting with other
>> materials that might
>> work too, including pure metals, alloys and sulphur
>> compounds.
>>
>> >From issue 2586 of New Scientist magazine, 10
>> January 2007, page 12
>>
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> ------------------------------
>
> Message: 12
> Date: Thu, 11 Jan 2007 21:14:26 -0500
> From: "Gerald Flaherty" <grf2 at verizon.net>
> Subject: Re: [meteorite-list] January Comet?
> To: "Gerald Flaherty" <grf2 at verizon.net>,
> <Meteorite-list at meteoritecentral.com>
> Message-ID: <024001c735ef$62857dc0$6402a8c0 at Dell>
> Content-Type: text/plain; format=flowed; charset=iso-8859-1;
> reply-type=original
>
> WOW. I SENT THIS ONE OUT DAYS AGO!!???
> Jerry Flaherty
> ----- Original Message -----
> From: "Gerald Flaherty" <grf2 at verizon.net>
> To: <Meteorite-list at meteoritecentral.com>
> Sent: Tuesday, January 09, 2007 2:31 PM
> Subject: [meteorite-list] January Comet?
>
>
>> Doug or anyone currently on line with position of the recent Comet, I'd
>> appreciate a head's up to locate it OR is it that conspicuous in the SW _at_
>> twilight???
>> It promises to be clear with a moonless twilight this evening in
>> Plymouth,
>> MA??
>> Jerry Flaherty
>>
>> ______________________________________________
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>
>
>
> ------------------------------
>
> Message: 13
> Date: Thu, 11 Jan 2007 21:32:05 -0500
> From: "Gerald Flaherty" <grf2 at verizon.net>
> Subject: Re: [meteorite-list] January Comet?
> To: <gary at webbers.com>, <meteorite-list at meteoritecentral.com>
> Message-ID: <026a01c735f1$d9c0cc30$6402a8c0 at Dell>
> Content-Type: text/plain; format=flowed; charset=iso-8859-1;
> reply-type=original
>
> Sorry for you Gary. I got a look at it last nite.
> Jerry Flaherty
> ----- Original Message -----
> From: "Gary K. Foote" <gary at webbers.com>
> To: <meteorite-list at meteoritecentral.com>
> Sent: Thursday, January 11, 2007 4:24 PM
> Subject: Re: [meteorite-list] January Comet?
>
>
>> Clouds to the west the last two nights. I got some good sunset pics, but
>> no comet :(
>>
>> Gary
>>
>> On 11 Jan 2007 at 15:13, MexicoDoug wrote:
>>
>>> "Doug or anyone currently on line with position of the recent Comet, I'd
>>> appreciate a head's up to locate it OR is it that conspicuous in the SW
>>> twilight???"
>>>
>>> For you Yanks near Plymouth and Boston, you can see it weather/pollution
>>> permitting from 16:50 until it sets at 17:22. Use the Sunset as a
>>> reference. That's today EST Jan 11.
>>>
>>> At Your area: 16:36 the Sun sets at a 241 degree bearing (azimuth)
>>> clockwise
>>> from North (270 is due west, so it is SW like you said). Good luck you
>>> have
>>> just a few minutes to get out and bag it. The rest of the USA will have
>>> similar positions relative to the point and timing of Sunset, though the
>>> further deep down in Dixie you go the harder and harder and more
>>> compressed
>>> the timing is...
>>>
>>> Comet ("Turn Right at Sunset"):
>>> 244.5 degrees at Sunset (just 3.5 degrees to the right of Sunset point -
>>> a
>>> half 10x50 binocular field away).
>>> 247 degrees at 15 minutes after Sunset (6 degrees right of Sunset
>>> point).
>>> 249 degrees at 30 minutes after Sunset (8 degrees right of Sunset
>>> point).
>>>
>>> For Jerry comet altitude will be:
>>> After Sunset
>>> 30 minutes: 2 degrees
>>> 15 Min: 4.5 degrees
>>> 0 min: 7 degrees
>>>
>>> Good Luck, go for it, I might let you know how it went for me later, but
>>> have had some sad heath issues lately to deal with (not my own). The
>>> summary for my observing is "Changes in Attitudes, Changes in Latitudes"
>>> like the Jimmy Buffett song says.
>>>
>>> Best wishes for the Comet,
>>> Doug
>>>
>>>
>>> ______________________________________________
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>>> Meteorite-list at meteoritecentral.com
>>> http://six.pairlist.net/mailman/listinfo/meteorite-list
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>>
>>
>>
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>
>
> ------------------------------
>
> Message: 14
> Date: Thu, 11 Jan 2007 21:34:21 -0500
> From: "Gerald Flaherty" <grf2 at verizon.net>
> Subject: Re: [meteorite-list] Re-2: January Comet?
> To: <bernd.pauli at paulinet.de>, <Meteorite-list at meteoritecentral.com>
> Message-ID: <027101c735f2$2bd70ca0$6402a8c0 at Dell>
> Content-Type: text/plain; format=flowed; charset=iso-8859-1;
> reply-type=original
>
> Bernd and List, this beat Hyakutake by several orders
> Jerry Flaherty
> ----- Original Message -----
> From: <bernd.pauli at paulinet.de>
> To: <Meteorite-list at meteoritecentral.com>
> Sent: Thursday, January 11, 2007 4:31 PM
> Subject: [meteorite-list] Re-2: January Comet?
>
>
>> Gary disappointedly comments:
>>
>> Clouds to the west the last two nights. I got
>> some good sunset pics, but no comet :( Gary
>>
>> Now, drum roll, ... my comment:
>>
>> Clouds here to the west, east, north and south the last two nights :-(
>> Thomas Tuchan must have been extremely lucky ... his home town Ulm
>> is only about 200 km from where I live. Sincere congrats, Thomas!
>>
>> Well, you can't have it all - I saw Halley, I saw Hale-Bopp, I saw
>> Hyakutake, ... plus some telescopic comets, so I shouldn't complain!
>>
>> Cometary Cheers,
>>
>> Bernd
>>
>> ______________________________________________
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>
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>
> End of Meteorite-list Digest, Vol 38, Issue 52
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Received on Thu 11 Jan 2007 11:38:26 PM PST